Learn notes about minesweeper Games (ii)

The pass-through value between the user control and the form: to achieve the success or failure of minesweeper in minefield, the smiley face icon makes a corresponding change.

1. Pass the parameter through the constructor function

// in the Minefield class  Public PictureBox smile;  Public minefield (PictureBox pb) {       smile=PB;      InitializeComponent ();} // join in the InitializeComponent in Form.designer  This New Mine.minefield (PictureBox1);

This makes it possible to invoke the outside PictureBox directly in the minefield.
However, there is a problem: the form Designer generated code is best not to modify, each time as long as the design window changes, Form.designer code will be regenerated, you add the

This.minefield1 = new Mine.minefield (pictureBox1);

form[Design] will also report strange anomalies.
2, through the event trigger mechanism

//in the minefield  Public Delegate voidMinesweepedeventsuccessfullyhandler (); Public EventMinesweepedeventsuccessfullyhandler minesweepedsuccessfully; Public Delegate voidMinesweepedfalledhandler (); Public EventMinesweepedfalledhandler minesweepedfalled; Public voidfalling () {if(Minesweepedfalled! =NULL) {minesweepedfalled (); }        }         Public voidsuccessful () {if(Minesweepedsuccessfully! =NULL) {minesweepedsuccessfully (); }        }   if(demining Success) successful (); if(Minesweeper failed) Falling ();//Triggering Events//in Form Private voidForm1_Load (Objectsender, EventArgs e) {             This. Minefield1.init (Ten,Ten);  This. minefield1.minesweepedfalled + =The name of the event-handling function;  This. minefield1.minesweepedsuccessfully + =The name of the event-handling function; }  

Through this example, I have a further understanding of the concept of events.

Learn notes about minesweeper Games (ii)